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目的:探讨胎儿脑电图定量分析用于产时诊断胎儿宫内窘迫的价值。方法:采用自制的经阴道胎儿脑电电极对65例产妇在第一产程末至胎儿娩出前进行胎儿脑电图监测,观察脑电图的变化并进行定量分析;依据分娩时胎心监护、羊水性状和新生儿Apgar评分等结果将研究对象分为正常组和窘迫组,并将两组脑电图定量分析结果进行比较。根据胎儿脐动脉血血气分析结果再将研究对象分为酸中毒组和正常组,对两组的脑电图定量分析结果进行比较。结果:胎儿窘迫组较正常组产时脑电图定量值BIS明显降低,95%SEF明显升高;与正常组相比,胎儿酸中毒组产时脑电图及其定量分析有显著异常。结论:产时胎儿脑电定量分析BIS、95%SEF是反映胎儿和新生儿缺氧及酸中毒的敏感指标。
Objective: To investigate the value of fetal electroencephalogram quantitative analysis for diagnosis of intrauterine fetal distress during delivery. Methods: The fetal electroencephalogram (EEG) was monitored in 65 pregnant women at the end of the first stage of labor and before the fetus was delivered by a homemade vaginal fetal electroencephalogram electrode. Changes of EEG were observed and quantitatively analyzed. According to fetal heart rate monitoring during labor, amniotic fluid Traits and neonatal Apgar score and other results will be divided into normal subjects and distress groups, and the results of two groups of electroencephalograms were compared. According to the fetal umbilical artery blood gas analysis results and then divided into acidosis group and normal group, the EEG quantitative analysis of the two groups were compared. Results: Compared with normal group, BIS in fetal distress group was significantly lower than that in normal group, and 95% SEF was significantly higher than that in normal group. There was a significant abnormality of EEG and quantitative analysis in fetal acidosis group compared with normal group. Conclusion: The quantitative fetal electroencephalogram (BIS), 95% SEF, is a sensitive indicator of hypoxia and acidosis in fetuses and neonates during delivery.